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c#asp.netashx

ASHX Image Download on Click

I am using ashx to serve images from a database, is there anyway to have a user click on a link that allows them to download the file on the computer. (IE it shows the Save Dialog) Like you download a file. Is this possible to do?

Solution

  • If you want it to prompt to save make sure you add the following line when creating the response:

    context.Response.AppendHeader("Content-Disposition",
    "attachment;filename=" + filename);

    This will make the browser treat it like an attachment and prompt with the save dialog.

    EDIT: Based on your comment make sure you are building your response correctly:

    // set attachment header like above
// then you need to get your file in byte[] form
byte[] dataYouWantToServeUp = GetData();
// you can set content type as well
yourHttpContext.Response.ContentType = "image/jpg";
// serve up the response
yourHttpContext.Response.BinaryWrite(dataYouWantToServeUp);